Improvement in sectional adjustable slotted cams



F. D. ELDERFIELD. Sectional Adjustabl Slotted Cam. 141,548.

Patented August 5, 1873.

AM. PHOTO-UTHDGRAFHIC ca mflosamgms moons) UNITED STATES PATENT OFFICE.

FREDERICK D. ELDERFIELD, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN SECTIONAL ADJUSTABLE SLOTTED CAMS.

Specification forming part of Letters Patent No. 141,548, dated August5, 1873; application filed May 13, 1873.

To all whom it may concern:

Be it known that I, FREDERICK D. ELDER- FIELD, of the city of St. Louis,State of Missouri, have invented a Sectional Adjustable Slotted Cam, ofwhich the following is a specification The object of my invention is toadjust a slotted cam to fit the trundle, (roller or stud,) instead offitting the trundle to the cam, by the combination of two sections of acam, secured together by screw bolts and nuts, the slot kept apart thedesired distance by two or more check-disks, and further and moredelicately adjusted by the check-screws and the bolt-nuts, secured andfastened to the shaft by the set-screws acting upon a loose key, toprevent marring the shaft, and further. fastened and secured to theshaft by the cap, nut, and shoulder on the shaft.

Figure 1 shows the cam as put together for use. Fig. 2 shows the same insections upon the shaft.

F with the bolt-nuts K K K, substantially as specified.

4. The combination of set-screws i i, acting upon the loose key 1) asspecified.

5. The combination of the cap H, the shoulder L, and the shaft-nut G,substantially as specified.

' F. D. ELDERFIELD. Witnesses:

WALTER J. (JooeLE, JOHN H. GRANGER.

